Improvement in extension-chandeliers



2 Sheets-Sheet 2v G. BOHNER. Extension-Chandelier.

No. 216.018. Patentedlune 3,1879.

OOOCDOOQBOOOC) III/IIIIIl/IIIIIIIIIIIIIIIIIIIIIIIIIlI/IIIIIIIIIIIMFETgRS. FHOTO-LITHQGRAPMER, WASHINGTON. D c.

UNITED STATES PATENT OFFICE.

GEORGE BOHNER, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN EXTENSION-CHANDEL'I ERS.

Specification forming part of Letters Patent No. 216,0] 8, dated J unc3, 1879 application filed February 19, 1879. 1

To all whom it may concern.-

Be it known that I, GEORGE BOHNER, of Chicago, Cook county, State ofIllinois, have invented a new and useful Improvement in'Extension-Chandeliers, of which the following is a full description,reference being had to accompanying drawings, in which Figure l is anelevation, (front;) Fig. 2, a side elevation; Fig. 3, a section at linea; of Fig. 2. Figs. 4, 5, and 6 are details.

This invention relates to devices by the use of which the lamps of achandelier can be easily raised and lowered, and held in anydesiredposition, as hereinafter fully described and specifically claimed.

In the drawings, A is a stationary metal tube. At its upper end isahook, a, by means of which it can be suspended from the ceiling orother suitable place. I) are holes in two sides of this tube A, atuniform distances apart. B is another metal tube, which moves up anddown outside of the tube A. O is a head, permanently secured to theupper end of the tube B, but so as not to interfere with the movement ofthis tube B. D D are two barrels, which rotate on pins supportedin thehead 0. Within each barrel is a helical spring, 0, arranged so that itwill wind up when the chandelier is drawn down. d are cogs or teeth onthe periphery of each barrel D, arranged to engage with the holes I) inA. These teeth or cogs extend into the interior of the tube A.

E is a rod located within the tube B, and also within the tube A. On theupper end of this rod is a conical head, 0, so arranged that when in theposition shown in Fig. 3 the cogs or teeth (I will come in contact withit. F is a cap on the lower end of the tube B, into which cap the end ofthe rod E passes through a guide, f, within the cap. 8 is a coil-spring,which encircles the rod E, and is located between the guide f and a pin,g, in the rod E. h is a cross-bar, which is permanently secured to thelower end of the rod E, and passes through slots 2' i in the cap F. G isa projection or knob upon the cap F, for convenience in manipulating theparts.

In use, when the lamps are at their highest point the parts will be inthe position shown in Fig. 1, and the conical head 0 on the rod E willbe held up between the cogs d by the ac tion of the spring 8, so thatthe barrels cannot turn. The operator can draw down the lamps by takinghold of the arms h and drawing down the rod E, so as to remove the heada from between the cogs (I. Then the tube B can be drawn down, at thesame time winding up the springs in the barrels D.

IVheu the lamps have been drawn down to the desired point the rod E mustbe released, when the head 6 will be again carried up be tween the cogsd, and will hold the parts in the position in which they have beenplaced. The lamps can be raised again by drawing down the rod E andwithdrawing the head 0 from between the cogs, as-before described, whenthe action of the springs in the barrels will raise the tube B, withwhich the lamps are to be connected. If the springs are not strongenough to carry the lamps to their highest point, the operator can aidthem by pushing upward.

I have not shown the lamps; but as the drawings are made the lamps areto be supported in the cups H upon the ends of the arms I, which, asshown, are secured to the cap F.

In practice these arms I will be connected with a hub attached to thelower end of the tube B.

I do not limit myself to the exact devices described for holding theparts in position, it

being evident that equivalents for the rod E and conical head 0 may beadopted to prevent the rotation of the barrels D.

For a light chandelier a single barrel and spring might be used, whilefor a heavy chandelier three barrels and springs could be used, properlyarranged around the tube B.

What Iclaim as new, and desire to secure by Letters Patent, is asfollows:

1. In an extension-chandelier, the tube A, provided with holes I), incombination with the tube B, adapted to receive. the head 0, head 0, andone or more barrels, D, provided with teeth d upon its periphery,adapted to engage with the holes 11 in the tube A, all con- E, providedwith a head, 0, springs, and bar h, proj eating through the cap F, allconstructed and operating substantially as and for the purposes setforth.

GEORGE BOHNER.

Witnesses E. A. WEST, O. W. BOND.

